US10759708B2 - High-light trasmittance zirconia sintered body, preparation method therefor and use thereof - Google Patents

High-light trasmittance zirconia sintered body, preparation method therefor and use thereof Download PDF

Info

Publication number
US10759708B2
US10759708B2 US16/289,369 US201916289369A US10759708B2 US 10759708 B2 US10759708 B2 US 10759708B2 US 201916289369 A US201916289369 A US 201916289369A US 10759708 B2 US10759708 B2 US 10759708B2
Authority
US
United States
Prior art keywords
zirconia
powder
sintered body
aluminum oxide
zirconia sintered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US16/289,369
Other versions
US20190210927A1 (en
Inventor
Aimin Yang
Xuekui Mo
Xibin Song
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Sinocera Functional Material Co Ltd
Original Assignee
Shandong Sinocera Functional Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Sinocera Functional Material Co Ltd filed Critical Shandong Sinocera Functional Material Co Ltd
Assigned to SHANDONG SINOCERA FUNCTIONAL MATERIAL CO.,LTD reassignment SHANDONG SINOCERA FUNCTIONAL MATERIAL CO.,LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MO, Xuekui, SONG, Xibin, Yang, Aimin
Publication of US20190210927A1 publication Critical patent/US20190210927A1/en
Application granted granted Critical
Publication of US10759708B2 publication Critical patent/US10759708B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
    • C04B35/488—Composites
    • C04B35/4885—Composites with aluminium oxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/60—Preparations for dentistry comprising organic or organo-metallic additives
    • A61K6/61—Cationic, anionic or redox initiators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C04B35/6262—Milling of calcined, sintered clinker or ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63424—Polyacrylates; Polymethacrylates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63456—Polyurethanes; Polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63488—Polyethers, e.g. alkylphenol polyglycolether, polyethylene glycol [PEG], polyethylene oxide [PEO]
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5409—Particle size related information expressed by specific surface values
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/668—Pressureless sintering
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9653—Translucent or transparent ceramics other than alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts

Definitions

  • the present invention relates to the field of material engineering, specifically, to a high-light transmittance zirconia sintered body and preparation method therefor and use thereof.
  • Zirconia ceramic is a new type of biomaterial with good biocompatibility and excellent mechanical properties, which has become the focus of dental ceramic development.
  • CN104016677A discloses a light-transmissive zirconia sintered body and preparation method therefor.
  • the zirconia for dental use prepared by the method has a relatively low transmittance, poor overall texture and jade-like appearance, is not aesthetically pleasing, and has certain limitations in application.
  • ZL201010604330.3 discloses a dental high-transmittance zirconia material and preparation process thereof, which adopts a dry mixing process to prepare zirconia, prone to cause uneven distribution of strength and low strength of zirconia, and the ceramic sintered body is prone to cracking when applied.
  • One purpose of the present invention is to provide a novel high-light transmittance zirconia sintered body and preparation method therefor.
  • Another purpose of the present invention is to provide use of the high-light transmittance zirconia sintered body in the preparation of a fixed dental prosthesis.
  • the present invention first provides a material for a high-light transmittance zirconia sintered body, and the material is prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which ⁇ -aluminum oxide powder is added, then spray granulating to obtain a powder material having an average particle diameter of 0.1 ⁇ m to 0.4 ⁇ m.
  • the molar percentage of yttrium oxide in the zirconia powder is 4% to 6%.
  • the ⁇ -aluminum oxide powder has a BET specific surface area of 5 to 16 m 2 /g.
  • the zirconia powder has a BET specific surface area of 8 to 16 m 2 /g, and an average particle diameter of 0.1 to 0.4 ⁇ m.
  • the preparation method of the zirconia powder is as follows:
  • a soluble zirconium salt and a soluble yttrium salt are mixed at a ratio and dissolved in water, and ammonia water is slowly added under stirring to adjust the pH of the slurry to 8 to 10;
  • the powder is subjected to heat treatment at 800 to 1200° C. for 2 to 5 h, and then grinding and dispersing;
  • the dispersed particles are granulated to obtain a powder for a high-light transmittance zirconia sintered body
  • the soluble zirconium salt includes zirconium oxychloride, zirconium nitrate, zirconium sulfate and the like; and the soluble yttrium salt includes yttrium chloride, yttrium nitrate, yttrium sulfate and the like.
  • the molar ratio of the soluble zirconium salt to the yttrium salt is 94 to 96:4 to 6, preferably 95:5.
  • a step of adding a dispersant and a binder to the mixture of the zirconia and the ⁇ -aluminum oxide is also included.
  • the dispersant includes at least one selected from acrylic acid, polyacrylic acid, acrylamide, polyurethane and the like.
  • the binder includes at least one selected from polyvinyl alcohol, polyethylene glycol, acrylic resin, carboxymethyl cellulose and the like.
  • the weight parts of the feedstocks for preparing the material for the high-light transmittance zirconia sintered body of the present invention are as follows: 50 to 100 parts of zirconia powder, 0.01 to 0.1 parts of ⁇ -aluminum oxide powder, 0.1 to 0.5 parts of dispersant, 0.1 to 8.0 parts of binder, and 50 to 100 parts of water.
  • the weight parts of the feedstocks are as follows: 100 parts of zirconia powder, 0.1 parts of ⁇ -aluminum oxide powder, 0.2 parts of dispersant, 5 parts of binder, and 100 parts of water.
  • the material for the high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which ⁇ -aluminum oxide powder, water and alumina slurry are added and stirred for 5 to 30 minutes, then spray granulating to obtain a powder material having an average particle diameter of 0.1 ⁇ m to 0.4 ⁇ m for preparing a high-light transmittance zirconia sintered body.
  • the present invention also provides a high-light transmittance zirconia sintered body prepared from the material.
  • a ceramic with 1 mm thick of the sintered body has a linear transmittance of >47% and a three-point bending strength of >600 MPa.
  • the obtained sintered body has a grain size of 0.1 to 0.7 ⁇ m, and a good toughness due to the dispersion and toughening by alumina. After the sintered body is aged at 140° C. for 20 h, the monoclinic phase of the aged sintered body is ⁇ 10%, and the anti-aging property is excellent.
  • the high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: the material for a high-light transmittance zirconia sintered body is processed and molded, and then subjected to high-temperature sintering in the atmosphere under normal pressure. For example, the temperature for high-temperature sintering is maintained at 1400 to 1550° C. for 1 to 4 h.
  • the present invention also provides the use of the high-light transmittance zirconia sintered body in the preparation of a fixed dental prosthesis (including a denture).
  • the present invention further provides a fixed dental prosthesis, such as zirconia denture, prepared from the high-light transmittance zirconia sintered body.
  • a fixed dental prosthesis such as zirconia denture
  • the zirconia sintered body provided by the present invention has a grain size of 0.1 to 0.7 ⁇ m, and the zirconia sintered body has a higher strength and toughness due to the dispersion and toughening by aluminum oxide. Pores in the zirconia powder can be eliminated by adding aluminum oxide.
  • the zirconia sintered body has a higher light transmittance, and the prepared dentures have good texture, good jade-like appearance, and are closer to the human teeth.
  • the percent sign “%” involved in the present invention means a percentage by mass unless otherwise specified. However, the percentage of a solution, unless otherwise specified, means the number of grams of the solute contained in 100 mL solution.
  • the ⁇ -aluminum oxide powder used in the following Examples has a BET specific surface area of 5 to 16 m 2 /g.
  • Examples 1 to 5 Material for a High-Light Transmittance Zirconia Sintered Body
  • the material for the high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which ⁇ -aluminum oxide powder is added, and then the powder material having an average particle diameter of 0.1 to 0.4 ⁇ m for preparing the high-light transmittance zirconia sintered body was obtained by spray granulation. (Table 1)
  • Example 1 Example 2
  • Example 3 Example 4
  • Example 5 Molar percentage of 4.5 5.3 6 5 5 yttrium oxide in zirconia powder
  • BET specific surface area 10-16 10-16 10-16 10-16 10-16 of zirconia powder, m 2 /g Average particle diameter 0.1-0.4 0.1-0.4 0.1-0.4 0.1-0.4 of zirconia powder, ⁇ m Dispersant Acrylic acid Polyacrylic Polyacrylic Acrylamide Polyurethane acid acid Binder PEG 1000 PVA124 PVA205 PEG400 PVA105 Weight ratio of zirconia 100:0.1:0.4:2:80 50:0.05:0.1:0.5:100 100:0.1:0.2:5:100 100:0.1:0.3:8:80 100:0:0.5:3:50 powder, ⁇ -aluminium oxide powder, dispersant, binder and water Average particle diameter 0.210 0.198 0.202 0.321 0.189 of the material for the high-light transmittance zirconia sintered body,
  • the preparation method of the zirconia powder was as follows:
  • the slurry was transferred to a reaction kettle, and subjected to hydrothermal synthesis at 140 to 200° C. for 10 to 72 h;
  • the powder was subjected to heat treatment at 800 to 1200° C. for 2 to 5 h, and then grinding and dispersing;
  • the dispersed particles were granulated to obtain a powder for a high-light transmittance zirconia sintered body.
  • the powder prepared in Examples 1 to 5 was subjected to dry-pressing molding (molding pressure: 150 to 250 MPa), and then sintering at 1400 to 1550° C. in the atmosphere under normal pressure for 1 to 4 h to obtain the high-light transmittance zirconia sintered body.
  • the various indexes of the obtained sintered body products were shown in Table 2.
  • Example 6 Example 7
  • Example 8 Example 9
  • the high-light transmittance zirconia sintered body provided in the present invention can be used as dental materials such as fixed dental prostheses, for example, dentures.
  • the zirconia sintered body provided in the present invention has a grain size of 0.1 to 0.7 ⁇ m, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide.
  • the zirconia sintered body has a higher light transmittance, and the prepared dentures have good texture, good jade-like appearance, and are closer to the human teeth.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Composite Materials (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Provided is a high-light transmittance zirconia sintered body, prepared by processing and forming a material for the high-light transmittance zirconia sintered body, and then performing high-temperature sintering in the atmosphere under normal pressure. The material for a high-light transmittance zirconia sintered body is prepared from zirconia powder and α-aluminum oxide as raw materials, wherein the molar percentage of yttrium oxide in the zirconia powder is 4-6%. The high-light transmittance zirconia sintered body can be used for preparing a fixed dental prosthesis. The zirconia sintered body has a grain size of 0.1-0.7 μm, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures are good in texture, good in jade-like appearance, and closer to the human teeth.

Description

CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation of International Application No. PCT/CN2017/095747, filed Aug. 3, 2017, which claims the priority to Chinese patent Application No. 201610793366.8, filed on Aug. 31, 2016, both of which are incorporated by reference herein in their entireties.
TECHNICAL FIELD
The present invention relates to the field of material engineering, specifically, to a high-light transmittance zirconia sintered body and preparation method therefor and use thereof.
BACKGROUND ART
Zirconia ceramic is a new type of biomaterial with good biocompatibility and excellent mechanical properties, which has become the focus of dental ceramic development.
CN104016677A discloses a light-transmissive zirconia sintered body and preparation method therefor. The zirconia for dental use prepared by the method has a relatively low transmittance, poor overall texture and jade-like appearance, is not aesthetically pleasing, and has certain limitations in application. ZL201010604330.3 discloses a dental high-transmittance zirconia material and preparation process thereof, which adopts a dry mixing process to prepare zirconia, prone to cause uneven distribution of strength and low strength of zirconia, and the ceramic sintered body is prone to cracking when applied.
SUMMARY OF THE INVENTION
One purpose of the present invention is to provide a novel high-light transmittance zirconia sintered body and preparation method therefor.
Another purpose of the present invention is to provide use of the high-light transmittance zirconia sintered body in the preparation of a fixed dental prosthesis.
In order to achieve the purpose of the present invention, the present invention first provides a material for a high-light transmittance zirconia sintered body, and the material is prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which α-aluminum oxide powder is added, then spray granulating to obtain a powder material having an average particle diameter of 0.1 μm to 0.4 μm.
The molar percentage of yttrium oxide in the zirconia powder is 4% to 6%.
The α-aluminum oxide powder has a BET specific surface area of 5 to 16 m2/g.
The zirconia powder has a BET specific surface area of 8 to 16 m2/g, and an average particle diameter of 0.1 to 0.4 μm.
The preparation method of the zirconia powder is as follows:
S1, a soluble zirconium salt and a soluble yttrium salt are mixed at a ratio and dissolved in water, and ammonia water is slowly added under stirring to adjust the pH of the slurry to 8 to 10;
S2, the above slurry is transferred to a reaction kettle, and hydrothermal synthesis is performed at 140 to 200° C. for 10 to 72 h;
S3, the resultant reaction solution is washed with water and dried to obtain a powder;
S4, the powder is subjected to heat treatment at 800 to 1200° C. for 2 to 5 h, and then grinding and dispersing; and
S5, the dispersed particles are granulated to obtain a powder for a high-light transmittance zirconia sintered body;
In step S1, the soluble zirconium salt includes zirconium oxychloride, zirconium nitrate, zirconium sulfate and the like; and the soluble yttrium salt includes yttrium chloride, yttrium nitrate, yttrium sulfate and the like. The molar ratio of the soluble zirconium salt to the yttrium salt is 94 to 96:4 to 6, preferably 95:5.
When preparing the material, a step of adding a dispersant and a binder to the mixture of the zirconia and the α-aluminum oxide is also included.
The dispersant includes at least one selected from acrylic acid, polyacrylic acid, acrylamide, polyurethane and the like. The binder includes at least one selected from polyvinyl alcohol, polyethylene glycol, acrylic resin, carboxymethyl cellulose and the like.
The weight parts of the feedstocks for preparing the material for the high-light transmittance zirconia sintered body of the present invention are as follows: 50 to 100 parts of zirconia powder, 0.01 to 0.1 parts of α-aluminum oxide powder, 0.1 to 0.5 parts of dispersant, 0.1 to 8.0 parts of binder, and 50 to 100 parts of water.
Preferably, the weight parts of the feedstocks are as follows: 100 parts of zirconia powder, 0.1 parts of α-aluminum oxide powder, 0.2 parts of dispersant, 5 parts of binder, and 100 parts of water.
The material for the high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which α-aluminum oxide powder, water and alumina slurry are added and stirred for 5 to 30 minutes, then spray granulating to obtain a powder material having an average particle diameter of 0.1 μm to 0.4 μm for preparing a high-light transmittance zirconia sintered body.
The present invention also provides a high-light transmittance zirconia sintered body prepared from the material. A ceramic with 1 mm thick of the sintered body has a linear transmittance of >47% and a three-point bending strength of >600 MPa. The obtained sintered body has a grain size of 0.1 to 0.7 μm, and a good toughness due to the dispersion and toughening by alumina. After the sintered body is aged at 140° C. for 20 h, the monoclinic phase of the aged sintered body is <10%, and the anti-aging property is excellent.
The high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: the material for a high-light transmittance zirconia sintered body is processed and molded, and then subjected to high-temperature sintering in the atmosphere under normal pressure. For example, the temperature for high-temperature sintering is maintained at 1400 to 1550° C. for 1 to 4 h.
The present invention also provides the use of the high-light transmittance zirconia sintered body in the preparation of a fixed dental prosthesis (including a denture).
The present invention further provides a fixed dental prosthesis, such as zirconia denture, prepared from the high-light transmittance zirconia sintered body.
The zirconia sintered body provided by the present invention has a grain size of 0.1 to 0.7 μm, and the zirconia sintered body has a higher strength and toughness due to the dispersion and toughening by aluminum oxide. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures have good texture, good jade-like appearance, and are closer to the human teeth.
SPECIFIC MODES FOR CARRYING OUT THE EMBODIMENTS
The following Examples are intended to illustrate the present invention, but are not intended to limit the scope of the present invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the raw materials used are all commercially available products.
The percent sign “%” involved in the present invention means a percentage by mass unless otherwise specified. However, the percentage of a solution, unless otherwise specified, means the number of grams of the solute contained in 100 mL solution.
The α-aluminum oxide powder used in the following Examples has a BET specific surface area of 5 to 16 m2/g.
Examples 1 to 5: Material for a High-Light Transmittance Zirconia Sintered Body
The material for the high-light transmittance zirconia sintered body of the present invention can be prepared by the following method: adding an appropriate amount of water to zirconia powder and grinding, during which α-aluminum oxide powder is added, and then the powder material having an average particle diameter of 0.1 to 0.4 μm for preparing the high-light transmittance zirconia sintered body was obtained by spray granulation. (Table 1)
TABLE 1
Powder for the high-light transmittance zirconia sintered body
Example 1 Example 2 Example 3 Example 4 Example 5
Molar percentage of 4.5 5.3 6 5 5
yttrium oxide in zirconia
powder
BET specific surface area 10-16 10-16 10-16 10-16 10-16
of zirconia powder, m2/g
Average particle diameter 0.1-0.4 0.1-0.4 0.1-0.4 0.1-0.4 0.1-0.4
of zirconia powder, μm
Dispersant Acrylic acid Polyacrylic Polyacrylic Acrylamide Polyurethane
acid acid
Binder PEG 1000 PVA124 PVA205 PEG400 PVA105
Weight ratio of zirconia 100:0.1:0.4:2:80 50:0.05:0.1:0.5:100 100:0.1:0.2:5:100 100:0.1:0.3:8:80 100:0:0.5:3:50
powder, α-aluminium
oxide powder, dispersant,
binder and water
Average particle diameter  0.210  0.198 0.202 0.321 0.189
of the material for the
high-light transmittance
zirconia sintered body, μm
The preparation method of the zirconia powder was as follows:
S1, the soluble zirconium salt (zirconium nitrate) and the soluble yttrium salt (yttrium nitrate) were mixed according to a ratio and dissolved in water, ammonia water was slowly added under stirring, and the pH of the slurry was adjusted to 8 to 10 with ammonia water;
S2, the slurry was transferred to a reaction kettle, and subjected to hydrothermal synthesis at 140 to 200° C. for 10 to 72 h;
S3, the resultant reaction solution was washed with water and dried to obtain a powder;
S4, the powder was subjected to heat treatment at 800 to 1200° C. for 2 to 5 h, and then grinding and dispersing; and
S5, the dispersed particles were granulated to obtain a powder for a high-light transmittance zirconia sintered body.
Examples 6 to 10: High-Light Transmittance Zirconia Sintered Body and Preparation Method Therefor
The powder prepared in Examples 1 to 5 was subjected to dry-pressing molding (molding pressure: 150 to 250 MPa), and then sintering at 1400 to 1550° C. in the atmosphere under normal pressure for 1 to 4 h to obtain the high-light transmittance zirconia sintered body. The various indexes of the obtained sintered body products were shown in Table 2.
TABLE 2
Indexes of high-light transmittance zirconia sintered body products
Example 6 Example 7 Example 8 Example 9 Example 10
Linear transmittance of 1 mm thick 47 50 48 47 49
ceramic, %
Three-point bending strength, MPa 750 820 648 800 748
Monoclinic phase of the aged 7.6 5.3 1.2 2.5 2.8
sintered body, %
Fracture toughness, MPa · m1/2 7 9 8 6 6
The high-light transmittance zirconia sintered body provided in the present invention can be used as dental materials such as fixed dental prostheses, for example, dentures.
Although the present invention is described in detail with general description and specific embodiments as above, it will be apparent to a person skilled in the art that some modifications and improvements can be made on the basis of the present invention. Therefore, such modifications or improvements without departing from the spirit of the present invention are intended to be within the scope of protection of the present invention.
INDUSTRIAL APPLICABILITY
The zirconia sintered body provided in the present invention has a grain size of 0.1 to 0.7 μm, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures have good texture, good jade-like appearance, and are closer to the human teeth.

Claims (10)

What is claimed is:
1. A method for preparing a material for a high-light transmittance zirconia sintered body, comprising:
adding an appropriate amount of water to zirconia powder and grinding, during which α-aluminum oxide powder is added, then spray granulating to obtain a powder material having an average particle diameter of 0.1 μm to 0.4 μm;
wherein the molar percentage of yttrium oxide in the zirconia powder is 4% to 6%.
2. The method of claim 1, wherein the zirconia powder has a BET specific surface area of 8 to 16 m2/g, and an average particle diameter of 0.1 to 0.4 μm; and wherein the method further comprises preparing the zirconia powder comprising:
mixing a soluble zirconium salt and a soluble yttrium salt at a ratio and dissolving in water to form a slurry, and wherein pH of the slurry is adjusted to 8 to 10 with ammonia water while stirring, where the molar ratio of the soluble zirconium salt to the soluble yttrium salt during the mixing is 94 to 96:4 to 6;
subjecting the slurry to hydrothermal synthesis at 140 to 200° C. for 10 hours to 72 hours;
washing a resultant reaction solution with water and drying to obtain a powder;
heat treating the powder at 800 to 1200° C. for 2 hours to 5 hours, and then grinding and dispersing; and
granulating dispersed particles to obtain a powder for a high-light transmittance zirconia sintered body.
3. The method of claim 2, wherein the molar ratio of the soluble zirconium salt to the soluble yttrium salt during the mixing is 95:5.
4. The method of claim 3, wherein the α-aluminum oxide powder has a BET specific surface area of 5 to 16 m2/g.
5. The method of claim 1, wherein the α-aluminum oxide powder has a BET specific surface area of 5 to 16 m2/g.
6. The method of claim 2, wherein the α-aluminum oxide powder has a BET specific surface area of 5 to 16 m2/g.
7. The method of claim 1, further comprising adding a dispersant and a binder to a mixture of the zirconia and the α-aluminum oxide;
wherein the dispersant includes at least one selected from acrylic acid, polyacrylic acid, acrylamide, and polyurethane; and
wherein the binder includes at least one selected from polyvinyl alcohol, polyethylene glycol, acrylic resin, and carboxymethyl cellulose.
8. The method of claim 7, wherein weight parts of the feedstocks for preparing the material are as follows: 50 to 100 parts of zirconia powder, 0.01 to 0.1 parts of α-aluminum oxide powder, 0.1 to 0.5 parts of dispersant, 0.1 to 8.0 parts of binder, and 50 to 100 parts of water.
9. The method of claim 2, further comprising adding a dispersant and a binder to a mixture of the zirconia and the α-aluminum oxide;
wherein the dispersant includes at least one selected from acrylic acid, polyacrylic acid, acrylamide, and polyurethane; and
wherein the binder includes at least one selected from polyvinyl alcohol, polyethylene glycol, acrylic resin, and carboxymethyl cellulose.
10. The method of claim 3, further comprising adding a dispersant and a binder to a mixture of the zirconia and the α-aluminum oxide;
wherein the dispersant includes at least one selected from acrylic acid, polyacrylic acid, acrylamide, and polyurethane; and
wherein the binder includes at least one selected from polyvinyl alcohol, polyethylene glycol, acrylic resin, and carboxymethyl cellulose.
US16/289,369 2016-08-31 2019-02-28 High-light trasmittance zirconia sintered body, preparation method therefor and use thereof Active US10759708B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610793366.8A CN106431395A (en) 2016-08-31 2016-08-31 High-light transmittance zirconia sintered body, and preparation method and application thereof
CN201610793366.8 2016-08-31
CN201610793366 2016-08-31
PCT/CN2017/095747 WO2018040835A1 (en) 2016-08-31 2017-08-03 High-light transmittance zirconia sintered body, preparation method therefor and use thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/095747 Continuation WO2018040835A1 (en) 2016-08-31 2017-08-03 High-light transmittance zirconia sintered body, preparation method therefor and use thereof

Publications (2)

Publication Number Publication Date
US20190210927A1 US20190210927A1 (en) 2019-07-11
US10759708B2 true US10759708B2 (en) 2020-09-01

Family

ID=58164186

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/289,369 Active US10759708B2 (en) 2016-08-31 2019-02-28 High-light trasmittance zirconia sintered body, preparation method therefor and use thereof

Country Status (3)

Country Link
US (1) US10759708B2 (en)
CN (1) CN106431395A (en)
WO (1) WO2018040835A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106396676A (en) * 2016-08-31 2017-02-15 山东国瓷功能材料股份有限公司 Light transmittance zirconium oxide sintered body, preparation method and application thereof
CN106431395A (en) * 2016-08-31 2017-02-22 山东国瓷功能材料股份有限公司 High-light transmittance zirconia sintered body, and preparation method and application thereof
CN110891920A (en) * 2017-07-31 2020-03-17 可乐丽则武齿科株式会社 Method for manufacturing powder comprising zirconium oxide particles and fluorescent agent
CN110891921A (en) * 2017-07-31 2020-03-17 可乐丽则武齿科株式会社 Zirconia sintered body containing fluorescent agent
CN110891903A (en) * 2017-07-31 2020-03-17 可乐丽则武齿科株式会社 Method for producing powder containing zirconia particles
CN107759218B (en) * 2017-12-11 2020-06-16 内蒙古科技大学 Yttria-stabilized zirconia ceramic and preparation method thereof
KR102692692B1 (en) * 2019-03-06 2024-08-06 쿠라레 노리타케 덴탈 가부시키가이샤 Zirconia sintered body with high straight light transmittance
WO2020218541A1 (en) * 2019-04-25 2020-10-29 クラレノリタケデンタル株式会社 Zirconia calcined body suitable for dental use and method for manufacturing same
US11661650B2 (en) * 2020-04-10 2023-05-30 Applied Materials, Inc. Yttrium oxide based coating composition
CN114014652A (en) * 2021-11-08 2022-02-08 长裕控股集团有限公司 Low-temperature sintered zirconia ceramic and preparation process thereof
CN116409990A (en) * 2021-12-31 2023-07-11 万华化学集团股份有限公司 Zirconia ceramic and preparation method thereof
CN116023164B (en) * 2023-03-29 2023-06-06 湖南康纳新材料有限公司 Porous zirconia ceramic block for dental restoration and preparation method and application thereof
CN118545995B (en) * 2024-07-29 2024-10-11 湖南泽尔顿新材料有限公司 Preparation method of ultra-high permeability zirconia powder

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636932A (en) 2004-12-03 2005-07-13 中国科学院新疆理化技术研究所 Microwave hydrothermal synthesis process of nanometer yttrium oxide stabilized zirconium oxide material
CN101891471A (en) 2010-07-12 2010-11-24 江西泛美亚材料有限公司 Method for preparing zirconium oxide nanopowder stabilized by yttrium oxide
US20110027742A1 (en) * 2008-04-09 2011-02-03 Tosoh Corporation Translucent zirconia sintered body, process for producing the same, and use of the same
CN102028624A (en) 2010-12-24 2011-04-27 辽宁爱尔创生物材料有限公司 High-transmittance zirconium oxide material for dentistry and preparation process thereof
CN102838348A (en) 2012-09-14 2012-12-26 江西金力永磁科技有限公司 Yttrium-zirconium nanometer ceramic powder body and preparation method thereof
CN104086175A (en) 2014-07-23 2014-10-08 西安航天复合材料研究所 Preparation method of YSZ ceramic powder for plasma spraying
CN106396676A (en) 2016-08-31 2017-02-15 山东国瓷功能材料股份有限公司 Light transmittance zirconium oxide sintered body, preparation method and application thereof
CN106431395A (en) 2016-08-31 2017-02-22 山东国瓷功能材料股份有限公司 High-light transmittance zirconia sintered body, and preparation method and application thereof
US9962247B2 (en) * 2014-06-23 2018-05-08 Tosoh Corporation Colored translucent zirconia sintered body and powder, and application thereof
US20180134624A1 (en) * 2015-04-27 2018-05-17 Suntech Advanced Ceramics (Shenzhen) Co., Ltd. Zirconium oxide composite ceramic and preparation method therefor

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636932A (en) 2004-12-03 2005-07-13 中国科学院新疆理化技术研究所 Microwave hydrothermal synthesis process of nanometer yttrium oxide stabilized zirconium oxide material
CN104016677A (en) 2008-04-09 2014-09-03 东曹株式会社 Translucent zirconia sintered body, process for producing the same, and use of the same
US20110027742A1 (en) * 2008-04-09 2011-02-03 Tosoh Corporation Translucent zirconia sintered body, process for producing the same, and use of the same
CN101998939A (en) 2008-04-09 2011-03-30 东曹株式会社 Light-transmitting sintered zirconia compact, process for producing the same, and use thereof
US20140370453A1 (en) * 2008-04-09 2014-12-18 Tosoh Corporation Translucent zirconia sintered body, process for producing the same, and use of the same
US9309157B2 (en) * 2008-04-09 2016-04-12 Tosoh Corporation Translucent zirconia sintered body, process for producing the same, and use of the same
CN101891471A (en) 2010-07-12 2010-11-24 江西泛美亚材料有限公司 Method for preparing zirconium oxide nanopowder stabilized by yttrium oxide
CN102028624A (en) 2010-12-24 2011-04-27 辽宁爱尔创生物材料有限公司 High-transmittance zirconium oxide material for dentistry and preparation process thereof
CN102838348A (en) 2012-09-14 2012-12-26 江西金力永磁科技有限公司 Yttrium-zirconium nanometer ceramic powder body and preparation method thereof
US9962247B2 (en) * 2014-06-23 2018-05-08 Tosoh Corporation Colored translucent zirconia sintered body and powder, and application thereof
CN104086175A (en) 2014-07-23 2014-10-08 西安航天复合材料研究所 Preparation method of YSZ ceramic powder for plasma spraying
US20180134624A1 (en) * 2015-04-27 2018-05-17 Suntech Advanced Ceramics (Shenzhen) Co., Ltd. Zirconium oxide composite ceramic and preparation method therefor
CN106396676A (en) 2016-08-31 2017-02-15 山东国瓷功能材料股份有限公司 Light transmittance zirconium oxide sintered body, preparation method and application thereof
CN106431395A (en) 2016-08-31 2017-02-22 山东国瓷功能材料股份有限公司 High-light transmittance zirconia sintered body, and preparation method and application thereof

Also Published As

Publication number Publication date
CN106431395A (en) 2017-02-22
US20190210927A1 (en) 2019-07-11
WO2018040835A1 (en) 2018-03-08

Similar Documents

Publication Publication Date Title
US10759708B2 (en) High-light trasmittance zirconia sintered body, preparation method therefor and use thereof
US20190231650A1 (en) Light-transmissive zirconia sintered body and preparation method therefor and use thereof
JP6760443B2 (en) Translucent zirconia sintered body and zirconia powder, and their uses
US10555795B2 (en) Colored translucent zirconia sintered body and powder, and use thereof
US10737983B2 (en) Black zirconia sintered body and preparation method therefor and use thereof
EP3838248B1 (en) Colored translucent zirconia sintered body and its use
AU640150B2 (en) Sintered material based on aluminium oxide, a process for its production and its use
CN112661504B (en) Preparation method of zirconia dental material
CN105792773A (en) Dental mill blank, process for production and use thereof
CN111511702A (en) Zirconia precalcined body suitable for dental use
CN114829319A (en) Method for producing workable zirconia composite sintered body, raw material composition for workable zirconia composite sintered body, and workable zirconia composite calcined body
CN109399932A (en) A kind of ceramic glaze and ceramics
CN111233468B (en) Preparation method of yttrium-stabilized zirconium powder for structural component
WO2023127792A1 (en) Zirconia sintered body and method for producing same
CN110002891A (en) A kind of rare-earth base zirconia ceramics material and preparation method thereof
JP7138558B2 (en) Mixture containing hydrated zirconia particles suitable for dental use and yttrium component and method of making same
KR102212913B1 (en) Method for preparing high basicity aluminum chlorohydrate
WO2023127793A1 (en) Zirconia sintered body and method for producing same
JP3257094B2 (en) Method for producing zirconia powder
CN117447201A (en) Method for preparing zirconia ceramics by multiple sintering process

Legal Events

Date Code Title Description
FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

AS Assignment

Owner name: SHANDONG SINOCERA FUNCTIONAL MATERIAL CO.,LTD, CHI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, AIMIN;MO, XUEKUI;SONG, XIBIN;SIGNING DATES FROM 20190319 TO 20190320;REEL/FRAME:048658/0721

Owner name: SHANDONG SINOCERA FUNCTIONAL MATERIAL CO.,LTD, CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, AIMIN;MO, XUEKUI;SONG, XIBIN;SIGNING DATES FROM 20190319 TO 20190320;REEL/FRAME:048658/0721

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT RECEIVED

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4